How do I find case law, statutes, concerning "breach of contract".

Breach of contract actions are usually a matter of common law (cases). See http://www.courts.wa.gov/opinions/. Retaining an attorney might be a...

How many parts of my legal state name can I legally change at a time?

You can choose any new name when getting married. It's part of the paperwork in the process.

Maybe you (or preferably your attorney) should appeal the license suspension. See https://www.dol.wa.gov/driverslicense/dui.html

Can a 17 year old date a 13 year without getting in trouble ?

See http://app.leg.wa.gov/RCW/default.aspx?cite=9A.44

See http://app.leg.wa.gov/RCW/default.aspx?cite=9A.40.060 and http://app.leg.wa.gov/RCW/default.aspx?cite=9A.40.070

How do I know if I have a DUI or court date?

You can check your court records (if any) at the courthouse or sometimes online.

What can I do to fight false claims of breaking a no-contact order?

You should retain an attorney. Perhaps it is a case of mistaken identity, so examination of the evidence might lead to exoneration.

How do I find what an expired bench warrant is for? ?

You (or your daughter) should retain an attorney. If you go to the court and ask the clerk, you might be able to obtain further information.

Is it legal for a 20 year old female to be sexually active with a 16 year old male?

In addition to previous answers from counsel, see RCW 9A.44 (http://app.leg.wa.gov/RCW/default.aspx?cite=9A.44).

What is the stature explaining overtime or actual time of work pay?

See https://www.lni.wa.gov/workplacerights/Default.asp. ...